202202001101221 has 32 divisors (see below), whose sum is σ = 230821861248000. Its totient is φ = 175334030551680.

The previous prime is 202202001101213. The next prime is 202202001101231. The reversal of 202202001101221 is 122101100202202.

It is a happy number.

It is not a de Polignac number, because 202202001101221 - 2³ = 202202001101213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202202001101195 and 202202001101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202202001101231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140303505 + ... + 141737353.

It is an arithmetic number, because the mean of its divisors is an integer number (7213183164000).

Almost surely, 2^{202202001101221} is an apocalyptic number.

It is an amenable number.

202202001101221 is a deficient number, since it is larger than the sum of its proper divisors (28619860146779).

202202001101221 is a wasteful number, since it uses less digits than its factorization.

202202001101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435449.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202202001101221 its reverse (122101100202202), we get a palindrome (324303101303423).

The spelling of 202202001101221 in words is "two hundred two trillion, two hundred two billion, one million, one hundred one thousand, two hundred twenty-one".